CN208872449U - A kind of fastener detecting fastening force - Google Patents
A kind of fastener detecting fastening force Download PDFInfo
- Publication number
- CN208872449U CN208872449U CN201821809935.4U CN201821809935U CN208872449U CN 208872449 U CN208872449 U CN 208872449U CN 201821809935 U CN201821809935 U CN 201821809935U CN 208872449 U CN208872449 U CN 208872449U
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- China
- Prior art keywords
- nut
- nut cap
- fastener
- label model
- stress
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Force Measurement Appropriate To Specific Purposes (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model relates to a kind of fasteners for detecting fastening force, and the nut including realizing its fastening function further includes nut cap shell, label model, nut cap inner casing and stress section bridge group；The nut cap shell and the nut cap inner casing assemble to form seal chamber, and the label model is fixed in the seal chamber；The stress section bridge group is arranged in the nut, is connect by cable with the label model；The label model is for wireless induction, acquisition and transmission data.The fastener for implementing a kind of detection fastening force of the utility model has the advantages that it can be realized automatic detection, can obtain specific, system data.
Description
Technical field
The utility model relates to internet of things field, more specifically to a kind of fastener for detecting fastening force.
Background technique
A large amount of nut, screw rod, bolt has been used to connect different member in tight in modern industry, building field.
It is also most important effect that the fastening effect of nut, which is most basic,.But nut can undertake from temperature, ultraviolet in real use
The various tests such as line, vibration, environmental corrosion, load, alternate stress, anti-shearing, anti-torsion will appear in long-time service and loosen mistake
The risk of effect.Therefore, it to avoid the engineering accident caused that fails because of nut loosening, needs to carry out the working condition of nut regular
Manual inspection and reinforcement operation.This manual inspection mode will consume a large amount of manpower, low efficiency, and there is also false retrieval, missing inspection,
The problems such as mass data can not be recorded, be traced.There are also the video detection technologies of some automations, have to the form of fastener
Nothing, missing are differentiated, reflect the working condition of fastener indirectly.The only good and bad two kinds of conclusions of this method, this method can not
Tracking grasp is carried out to stress progressive formation, the failure procedure of fastener, not can be carried out and correct in advance.
Summary of the invention
The technical problem to be solved by the present invention is to, for the prior art it is above-mentioned need manpower detection, can not be right
The defect that the stress progressive formation of fastener is detected, provide one kind can be realized automatic detection, can obtain it is specific, be
The fastener of the data of system.
The technical scheme adopted by the utility model to solve the technical problem is as follows: constructing a kind of fastening for detecting fastening force
Part, the nut including realizing its fastening function further include nut cap shell, label model, nut cap inner casing and stress section bridge group；It is described
Nut cap shell and the nut cap inner casing are mounted on the non-stress face of the nut；The nut cap shell and the nut cap inner casing group
Dress forms seal chamber, and the label model is fixed in the seal chamber, and the stress section bridge group is arranged in the nut, leads to
Cable is crossed to connect with the label model；The label model includes label model, realize wireless energy collect, acquisition and wireless
Transmit data etc..Therefore this fastener is powered without internal battery or external cable, is conveniently installed and used.
Further, the fastener further includes the gasket fixed for assisted fasteners.
Further, the stress section bridge group includes multiple resistance, for incuding nut stress.
Further, the nut cap shell is toughened plastic.
Further, the label model includes antenna, rfid chip module, sampling module and signal processing module.
Voltage needed for rfid chip module is converted to rfid chip module work by the rf wireless signal of matching reader output.
The fastener for implementing a kind of detection fastening force of the utility model, has the advantages that due in fastener
Upper to be provided with label model, stress becomes caused by which is able to detect nut miniature deformation due to caused by stress
Change, external reader can judge automatically the stress of fastener, so that it is tight to obtain this by receiving such status data
Firmware conclusion whether working properly.Fastener unclamp in the case where, due to its do not stress or stress reduce, lead to it
Stress relieved becomes smaller, these states can be embodied by above-mentioned status data.Therefore, it can be realized automatic inspection
It surveys, realize to the intelligent measurement of nut working condition.Since the work needed for generating can be collected in fastener by wireless energy
Power supply, therefore fastener is eliminated with changing battery or wiring powerup issue, is particularly suitable for in-site installation and is used.
Detailed description of the invention
Fig. 1 is structural schematic diagram in a kind of fastener embodiment for detecting fastening force of the utility model；
Fig. 2 is that the positional structure schematic diagram on screw is arranged in fastener in the embodiment；
Fig. 3 is the structural schematic diagram of label model in the embodiment.
Specific embodiment
The utility model embodiment is described further below in conjunction with attached drawing, the present embodiment only represents a kind of best reality
Mode is applied, limitations of the present invention should not be constituted.
As shown in figures 1 and 3, in a kind of fastener embodiment of detection fastening force of the utility model: the fastener
Nut 4 including realizing its fastening function further includes nut cap shell 1, label model 2, nut cap inner casing 3 and stress section bridge group 6；Institute
Stating nut cap shell 1 is toughened plastic, is fixed by screws on the non-stress face of the nut；The nut cap shell 1 and described
The assembling of nut cap inner casing 3 forms seal chamber, and the label model 2 is fixed in the seal chamber, and the setting of stress section bridge group 6 exists
In the nut 4, it is connect by cable 5 with the label model 2.The stress section bridge group 6 has multiple resistance, for incuding
The stress of nut.The label model 2 includes antenna 20, rfid chip module 21, sampling module 22 and signal processing mould
Block 23.The antenna 20 and rfid chip module 21 work together, and the wireless activation signal that external reader exports is converted to
Label model 2 and strain gage bridge group 6 work required power supply；Sampling module 22 and signal processing module 23 are to strain gage bridge group 6
The signal of output carries out sampling digitizing, and external reader is sent to by rfid chip module 21 and antenna 20.
As shown in Fig. 2, installation has fastening function and has the nut 4 of stress section bridge group 6 on screw 7, the nut 4 is logical
Gasket 8 is crossed to contact with by fastener 9.When nut 4 fastens, since by the effect of fastener 9, nut 4 is by buffer brake, both
Fastening force.Nut 4 is tighter, and the fastening force being subject to is bigger；Nut 4 is more loose, and the fastening force being subject to is with regard to smaller.
In the present embodiment, the working principle of the fastener is further illustrated by the application in rail fastener.Work as spiral shell
When mother's fastening work, nut stress surface, which will receive reaction force, makes nut interior generate miniature deformation, and then influences foil gauge and produce
Raw resistance variations.Label model carries out detection sampling by the resistance to strain gage bridge group, can be obtained when front nut work
The size of fastening force.Reader provides wireless activation signal to nut, then pumping signal is converted to energy starting by label model
Work provides working power for stress section bridge group, after acquiring stress signal, will test result feedback reader, can be realized to spiral shell
The detection of stress suffered by inside when mother's work.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (5)
1. a kind of fastener for detecting fastening force, the nut including realizing its fastening function, it is characterised in that further include outside nut cap
Shell, label model, nut cap inner casing and stress section bridge group；The nut cap shell and the nut cap inner casing are mounted on the non-of the nut
On stress surface, the nut cap shell and the nut cap inner casing assemble to form seal chamber；The label model is fixed on the sealing
Intracavitary, the stress section bridge group is arranged in the nut, is connect by cable with the label model；The label model is used
In wireless induction, acquisition and transmission data.
2. fastener according to claim 1, which is characterized in that the fastener further includes fixing for assisted fasteners
Gasket.
3. fastener according to claim 1, which is characterized in that the stress section bridge group includes multiple resistance, for feeling
Answer nut stress.
4. fastener according to claim 1, which is characterized in that the nut cap shell is toughened plastic.
5. fastener according to claim 4, which is characterized in that the label model include antenna, rfid chip module,
Sampling module and signal processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821809935.4U CN208872449U (en) | 2018-10-25 | 2018-10-25 | A kind of fastener detecting fastening force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821809935.4U CN208872449U (en) | 2018-10-25 | 2018-10-25 | A kind of fastener detecting fastening force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208872449U true CN208872449U (en) | 2019-05-17 |
Family
ID=66471219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821809935.4U Active CN208872449U (en) | 2018-10-25 | 2018-10-25 | A kind of fastener detecting fastening force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208872449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323843A (en) * | 2020-03-17 | 2020-06-23 | 中煤科工集团重庆研究院有限公司 | Device for detecting fastening state of mining explosion-proof shell fastener |
-
2018
- 2018-10-25 CN CN201821809935.4U patent/CN208872449U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323843A (en) * | 2020-03-17 | 2020-06-23 | 中煤科工集团重庆研究院有限公司 | Device for detecting fastening state of mining explosion-proof shell fastener |
| CN111323843B (en) * | 2020-03-17 | 2022-07-19 | 中煤科工集团重庆研究院有限公司 | Device for detecting fastening state of mining explosion-proof shell fastener |
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